Find and Download User Guides and Installations Manuals for your Fisher & Paykel Appliances: Washing Machines, Dryers, Dishwashers, Fridges, Ovens, etc. Contact Us Find Part Number. Follow the steps below to find your appliance's manual and locate the part number. Introduction 1.1 About this Manual This manual is intended for qualified service personnel who will perform maintenance and servicing on the Fisher & Paykel Healthcare MR850 Respiratory Humidifier. This manual covers the product specifications, includes a maintenance schedule, and provides the necessary information required for servicing. Fisher & Paykel MR810 Technical Manual. Humidifier Fisher & Paykel MR850 Instruction Sheet. Respiratory humidifier (3 pages). Page 2 United Kingdom REF 185042601 Rev C Fisher & Paykel Healthcare have a policy of continual product improvement and reserve the right to alter specifications without notice MR810 Technical Manual Rev C REF.
1. Make sure the humidifier has had time to warm up and that
there is sufficient gas flow through the breathing circuit.
2. The humidifier cannot maintain temperature. If the
temperature indicator is also on then an alarm will occur eventually.
Section 4.5
A low temperature is shown on the humidifier’s display, with no audible alarm
3. Humidifier or probe faulty. Complete humidifier and probe
performance test. Replace probe or service humidifier as required.
Section 8
1. Flow has recently been changed, allow 30 minutes for
temperature to stabilise
High displayed temperature, no temperature alarm
2. Manual or automatic humidity compensation is active
Section 4.1.5
Temperature indicator flashes, with audible alarm, and a high temperature is shown.
The gas flow rate may have suddenly changed. Monitor the displayed temperature, if the temperature does not fall rapidly then remove humidifier from patient, and complete a performance test on the humidifier, and temperature / flow probe. Replace probe or service humidifier as required.
Section 8
6.2 Technical
Problems
Problems that cause the humidifier to malfunction without an audible alarm are discussed in this section.
Symptom
Corrective Action
Reference
1. Check that the mains supply is within specification.
Provide adequate mains supply if required.
2. If ‘PtS’ is displayed.
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See manual indicator lit (not flashing)
3. Replace PCBs.
Fisher And Paykel Healthcare Mr850 User Manual Free
Section 7.2.3
1. Humidifier plugged into mains supply?
2. Check that the mains supply is within specification.
Provide adequate mains supply if required.
3. Remove mains power and check the fuses.
Section 7.2.2
4. Check continuity of mains power cord. Replace as
necessary.
Section 7.2.7
5. Check the transformer windings are not open circuit.
Primary Winding: Red wires Secondary 10v winding: White wires Secondary 22v winding: Yellow wires If any windings are open circuit, replace the transformer.
Section 7.2.4
Humidifier will not turn on with on/off button, and no indicators are lit
Fisher And Paykel Healthcare Mr850 User Manual 2017
6. Replace PCBs.
Section 7.2.3
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Unit fails calibration check
Send unit to a Fisher & Paykel Healthcare service representative for calibration, or replace PCBs.
Section 7.2.3
Probe fails Probe Accuracy Check
Replace probe.
1. If the chamber outlet temperature was low, the heater plate
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element should be checked. Replace element as necessary.
Section 7.2.5
Fisher Paykel Humidifier Manual
2. If the airway temperature was low, replace breathing circuit
and re-test.
Unit fails to reach temperature in humidifier control check. (Section 8.1.4)